When a flight scheduled from Boston to Los Angeles turns off its radio and transponder and heads toward New York City, it is pretty apparent it is not an electrical or mechanical problem.
A pilot shoots down a jet on orders, not because he makes that decision himself.
I am a federally licensed A&P mechanic, among other things ... I have over two decades’ experience in civil aviation: engine shop, flight line, heavy maintenance, etc. I’ve done it all. If you think that simultaneous communication failures (radio and transponder) are not possible, then you obviously know very little about aircraft electrical systems. We don’t call them “gremlins” without cause.
And an airliner changing course after such failure? If sufficiently far from his initial point of departure, the assumption would be that the captain opted to head for the closest airport that could handle the aircraft.
Most conspiracy theories only work in the movies. Real life presents real problems - the more people involved, the more secrecy required ... And we are discussing the federal government - who are so good at keeping secrets, as we all know. Right.
Ever hear of Occam’s Razor? Look it up.
BTW, I eat “truthers” for breakfast - every day.